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A Practical Guide to Choosing Between an Accumulator and Horizontal Accumulator

2025-11-24

Maintaining continuous high-speed operation is superior to improve productivity in a steel pipe making machine line. During the strip welding process—when the leading and trailing ends of steel coils are joined—it is inevitable to temporary stop in the uncoiler section.

At this time, the Squirrel cage type accumulator whose abbreviation is accumulator and the Horizontal Accumulator play the vital role of a "lifeline". Store a controlled length of strip before welding, which guarantees that the steel pipe making machine run continuously without interruption.

While both accumulator has the same operational purpose, their difference is between capacity, layout, and application suitability.

1. Common functions

Regardless of structure or scale,Their main function is to store a certain amount of steel strip for supplying main machine before it doing head and end welding to make sure main machine’s continuous production without stopping.

2. Key Differences Between Accumulator and Horizontal Accumulator

Feature

Accumulator

Horizontal Accumulator

Applicable Mill Size

MG-16 to MG-60

MG-60 and above

Strip Storage Capacity

Approximately 150–300 m

Filling speed approximately 120–200 m

Required Floor Space

About 6 meters, compact design

About 15 meters, requires larger space

Cost

Lower, cost-efficient

Higher investment

Structure

Horizontal multi-layer storage via lifting arms

Large spiral storage formed by strip looping

3. How to Choose: Key Decision Factors

Here are some suggestion for selection:

① Based on Production Scale and Mill Model

Best choice for small to medium-size lines:
For MG-60 and below, where the production speed is moderate, an Accumulator is the cost-effective and sufficient for production, guaranteeing stable buffering capacity for steel strip welding time.

Required for high-speed large-scale lines:
For MG-60 and above high-speed and production, the horizontal accumulator is the most suitable choice, because it support faster filling speed and has ability of storing more steel strips.

② Based on Available Floor Space

Limited workshop space:
If factory layout is tight, the Accumulator (approx. 6 m) has a clear advantage.

Space available:
If installation space is specious, the horizontal accumulator can be taken into account, especially for high-capacity production.

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③ Based on Investment Strategy

If budget control is a primary consideration factor and production demands can be met, the Accumulator is most cost performance, achieving faster return on investment.

Conclusion

The Accumulator offers a smaller area of coverage, outstanding cost effective, which makes it the ideal solution for most small to medium-sized steel tube making machine lines.

The Horizontal Accumulator excels in the storage of steel strips and high-speed capacity, suitable for large, high-performance production systems

In summary, there is no universal “best” choice—only most suitable one.

Your decision should be on the basis of the pipe mill model, production speed, available plant space, and investment considerations. By assessing these factors, you can match your production line with the most suitable continuous supply system—the true heartbeat of the mill.